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ISO 1204:1990

Reciprocating internal combustion engines — Designation of the direction of rotation and of cylinders and valves in cylinder heads, and definition of right-hand and left-hand in-line engines and locations on an engine

Publication date:   Dec 13, 1990

General information

90.93 Standard confirmed   Feb 7, 2020

ISO

ISO/TC 70 Internal combustion engines

International Standard

27.020   Internal combustion engines

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Scope

This document specifies methods of designating the direction of rotation and the cylinders of reciprocating internal combustion engines and of designating a specific valve in a cylinder head when the cylinder head is mounted on the engine or dismantled. It defines right-hand and left-hand in-line reciprocating internal combustion engines and locations on a reciprocating internal combustion engine so that the position of equipment on the engine can be described. It applies to reciprocating internal combustion engines for land, rail-traction and marine use, excluding engines used to propel agricultural tractors, road vehicles and aircraft. It may by applied to engines used to propel road-construction and earth-moving machines, industrial trucks and for other applications where no suitable International Standard for these engines exists. 

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 1204:1972

WITHDRAWN
ISO 1205:1972

WITHDRAWN
ISO 2276:1972

WITHDRAWN
ISO 3249:1975

NOW

PUBLISHED
ISO 1204:1990
90.93 Standard confirmed
Feb 7, 2020